'Pulse code modulation' diaporamas de présentation

Internet Telephony

Internet Telephony. Shivkumar Kalyanaraman Based upon slides of Henning Schulzrinne (Columbia). Overview. Telephony: history and evolution IP Telephony: Why ? Adding interactive multimedia to the web Being able to do basic telephony on IP with a variety of devices

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Data Communications Theory Lecture-5

University of Palestine. Faculty of Information Technology. Data Communications Theory Lecture-5. Dr. Anwar Mousa. Communication Techniques. Major topics. This chapter presents Data encoding techniques: illustrates Analog encoding of digital data

732 views • 63 slides

PULSE MODULATION TECHNIQUES

PULSE MODULATION TECHNIQUES. From: Er Manjit Singh Sr Lect ECE GPC,Bathinda. 1. INTRODUCTION.

2.53k views • 61 slides

Polyphonic music information retrieval based on multi-label cascade classification system

www.kdd.uncc.edu. Polyphonic music information retrieval based on multi-label cascade classification system. http//:www.mir.uncc.edu. presented by Zbigniew W. Ras University of North Carolina, Charlotte, NC College of Computing and Informatics. Student: Wenxin Jiang

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Chapter 2

Chapter 2. Voice Communications Concepts and Technology. Objectives. Investigate PSTN Study and understand digital voice communication and digitization Understand PBXs Understand CTI and voice services Introduce Digital voice transmission services. GOAL. Study the business behind

706 views • 57 slides

Signal Encoding Techniques

Signal Encoding Techniques. Chapter 6. Digital Vs Analog. Reasons for Choosing Encoding Techniques. Digital data, digital signal Equipment less complex and expensive than digital-to-analog modulation equipment Analog data, digital signal

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Data and Computer Communications

741 views • 52 slides

Ch 4 Amplitude Modulations and Demodulations

ENGR 4323/5323 Digital and Analog Communication. Ch 4 Amplitude Modulations and Demodulations. Engineering and Physics University of Central Oklahoma Dr. Mohamed Bingabr. Chapter Outline. Baseband vs. Carrier Communications Double-Sideband Amplitude Modulations (DSB)

1.32k views • 52 slides

Pulse Code Modulation (PCM)

Pulse Code Modulation (PCM). Example. Solution. In the previous example we have 8-quantization levels (to encode with 3-bits) from code number 0 to 7 (from binary code 000 to 111) Sample value : 2.8 3.2 2.7 1.1 Nearest level : 3 3 2.5 1

1.96k views • 39 slides

ECE 4371, Fall 2009

ECE 4371, Fall 2009. Zhu Han Department of Electrical and Computer Engineering Class 8 Sep. 17 th , 2007. Overview. Midterm 1 for analog, up to class 7 (include class 7), 10/6 Homework: 2.24, 2.29, 2.32, 2.33, 2.46, 2.56, 2.59, due 10/1 4117 two lab reports before the midterm

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975 views • 36 slides

Chapter 11 - Long-Distance Digital Connection Technologies

Chapter 11 - Long-Distance Digital Connection Technologies. Introduction Digital telephony Digitizing voice Example Sampling parameters Synchronous communication Using digital telephony for data delivery Conversion for digital circuits Using DSU/CSU Telephone standards

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Chapter 5: Video

Chapter 5: Video. Types of video signals Component video Three separate cables carry the RGB or YCbCr signals (Analog) Best form of analog video. Pictures from Wikipedia. S-Video One wire for luminance One wire for both chroma component. Composite video

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Michael Batistatos (Academic Laboratory Teacher)

University Of Peloponnese Faculty of Economy, Management and Informatics Department of Informatics and Telecommunications. Newcastle (UK). Michael Batistatos (Academic Laboratory Teacher). Tripolis (Greece). Wireless and Mobile Communications Lab. Electromagnetic Radiation Measurements.

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VoIP Applications for the Small Business

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Audio Fundamentals

Lesson 2. Audio Fundamentals. Sound, Sound Wave and Sound Perception Sound Signal Analogy/Digital Conversion Quantuzation and PCM Coding Fourier Transform and Filter Nyquest Sampling Theorem Sound Sampling Rate and Data Rate Speech Processing. Sound. Sound, sound wave, acoustics

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Module 3.1: Encoding and Modulating

Module 3.1: Encoding and Modulating. Conversion Schemes D to D Conversion A to A Conversion A to D Conversion D to A Conversion Final comments Why 56k modems, not more?. Different Conversion Schemes. Some Jargon: D to D encoding or conversion.

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Chapter 3: Pulse Code Modulation

Chapter 3: Pulse Code Modulation. Pulse Code Modulation Quantizing Encoding Analogue to Digital Conversion Bandwidth of PCM Signals. Huseyin Bilgekul Eeng360 Communication Systems I Department of Electrical and Electronic Engineering Eastern Mediterranean University.

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Some basic Audio preservation tips

Some basic Audio preservation tips. Allison Schein. Programs to use. Adobe Audition (http:// www.adobe.com/products/audition.html ) Recommended program, metadata creation and manipulation is easy and complete. Cross platform.

189 views • 11 slides

Analog to Digital Conversion

Analog to Digital Conversion. Based on Chapter 5 of William Stallings, Data and Computer Communication, 8 th Ed. Kevin Bolding Electrical Engineering Seattle Pacific University. Analog to Digital Conversion. Convert a continuous analog signal to a stream of bits for transmission.

468 views • 6 slides